Annunciator for telegraph-lines



(No Model.)

G. BEIN. Annunciator for Telegraph Lines. No. 240m Patented Aprii masa.

INVENTOR BY TTORNEYS.

UNITED STATES PATENT OFFICE.

GUSTAV Rem,- or OINCINNATL'OHIO.

nuuucm'ron-roe TELEGRAPH-LINES. I

SPECIFICATION forming part of Letters Patent No. 240,182, dated April12, 1881.

' A bncanou W August a1, 1880. (No model.)

' .To all whom it may concern:

Be it known that I, GUSTAV REIN, of Oincinnati, in the county ofHamilton and State of Ohio, have invented a new and useful Improvementin Annnnciators for Telegraph- Lines, of which .the following is aspecification.

In annunciators as heretofore constructed it is necessary to raise thedrop by hand to restore it to the normal position after a signal hasbeen received. This involves the risk of omission on the part. of theoperator to raise the drop and the liability of injury to the instrumentby inexpert operators.

The object of my invention is to provide for raising the dropautomatically by the devices used for connecting'or breaking the lines,thus avoiding necessity of handling the drop and insuring its return toplace. The further object is to prevent mistakes in connectingthe lines.

The invention consists in .a double wedgeslidefitted for movement by theplug that connects the lines, and acting upon the arm carrying the drop,so that the act of making or breaking connection raises the drop; also,in

changeable name-cards, combined with the annunciator, for showing thenames at all times whether the drop is raised or not.

In the accompanying drawings, forming part of this specification, Figure1 is. a perspective view of an annunciator containing myimprovements,and Fig. 2 is a vertical longitudinal --section of the same. Figs. 3 and4 are detail views. V

Similar letters of reference indicate corresponding parts. v

A'is the base orstand of the instrument. a is a spring-plate attached,by one end, to an insulated support on stand, and carrying at 6 itsouter end a grooved block, b, that rests upon a similarly-grooved block,0, of non-conducting material. The grooves in blocks b 0 form anaperture for insertion of the plug d, that connects the line withatelephone or other 5 instrument.

e is a slide-rod sustained loosely in a staple,

I 7c, attached to the under side of plate a, and

fitted with a spiral spring, j, that tends to 4 force the pin-forwardinto the aperture be- '50 tween the blocks b c. The rod 6 is fitted with.on the lower portion of incline e3.

apin, g, that projects through a long slot in plate a, and is connectedwith a plate, h, resting on plate a, so that plate It and rod 6 shallmove together. The plate h is fitted with inclined plates 5 0',extending lengthwise of plate a, and inclined in reverse directions. Thesides of plate h are formed with bevel-projections h, and upon plate aare pins k, at opposite sides of plate h, (see Fig; 4,) which pins act,by contact with projections h, to give side movement to the plate h ateach extreme of its lengthwise movement.

l is a castingattached to base A, sustaining the magnet m and carryingpivoted armature n.

o is the drop hung on casting l, and sustained by a projection on anarm, n, extending from. the armature.

p is a pin sustained loosely in a vertical position by the casting l,with its lower end resting on one incline of plate h, and taking at itsupper end by a collar, 12', beneath drop 0.

With the plugd withdrawn and drop 0' raised the rod e is projectedforward, and pin. it) rests When the drop falls by closure of thecircuit to the magnet the operator will connect his instrument byinsertion of plug d. This pushes back rod 0 and the incline iraisespin 1) and drop 0, and the latter is caught by arm n. The pin 1) dropsagain as soon as the incline '5 passes it, and at the same moment, theplate h being moved sidewise, the 'pin 10 will rest at the lower portionof the incline 'i, so that as the rod e moves forward when plug disremoved, pin 1) is again lifted and returned to its first positionafterpassingincline '8'. This latter movement insures return of the drop 0 incase a signal is given while the plug 1 is inserted.

Upon the front of casting l is fitted a spring plate or frame, 1',adapted for holding a namecard, s that is covered by micato preventinjury to the card. The cards th'us show the name of subscribersplainly, and liability to mistakes in making connections is lessened.The cards can be readily removed and changed 5 as required. i

The annunciator above described is specially adapted fortelephone-lines, and when used for that purpose it is desirable to havea'record made of the number of calls'made by each subzoo scriber. Toaccomplish this antomaticallyI combine with the annunciator thefollowingdescribed devices: On the under side of the casting l ispivoted a plate, t, the forward end of which projects in front of thecasting and is fitted with a toothed'wheel, 3 on which are Eta, 2: 21 ming with the number of teeth. The plate t is formed with a projection,t, at one side, and is provided with a spring, 10, that tends to movethe plate to one side. On the front of casting [is hung a-pawl, v,engaging with wheel 3 The pin 9 from slide 0 extends upward in front ofthe projection t of plate t.

When plug 41 is inserted to move plate h back,

as before described, the plate t is moved sidewise by contact of pin gwith. projection t, and wheel y being thus, moved toward the pawl, thewheel is turned one tooth. The parts are returned by spring w when plugdis withdrawn.

The wheel is thus turned 'every time a call is answered, and will thusindicatelthe number of calls.

Having thus described my invention, what 2 5 I claim as new, and desireto secure by Letters Patent, is-

1. 1n annunciators, the combination of pivard correspondoted plate t,toothed wheel'y, pawl v, and spring I 10, with sliding plate h, havingpin 9, and fitted for movement by the circuit-closing plug d,substantially as and for the purposes set forth.

2. In an annunciator, the 'pawl'v and toothed wheel 3 having numeralscorresponding to the teethfln combination withthe pivoted plate t,having projection t at one side, the spring 10, and the slide having pin9, as and for the purposespecified.

3. The combination, with an annunciator, of a wed ge-shaped slide fittedfor movement by the circuit-closingplug, and a slide-pin resting -on thewedge and extending beneath the drop,

substantially as shown and described, whereby the drop israised by theslide simultaneously with movement of the plug, as set forth.

4. In annunciators, the combination of plate h, having inclines 1' 1",spring slide-rod e, and vertical slide-pin p, together and with plate a,plug d, and drop 0, substantially as and for the purposes set forth.

, GUSTAV REIN.

' Witnesses: CARL KAMMEYER,

WM. MILLER.

